[go: up one dir, main page]

ATE363553T1 - FINGER-SHAPED CATHODE STRUCTURE FOR CHLORINE-ALKALINE DIAPHRAGMA ELECTROLYSIS CELLS - Google Patents

FINGER-SHAPED CATHODE STRUCTURE FOR CHLORINE-ALKALINE DIAPHRAGMA ELECTROLYSIS CELLS

Info

Publication number
ATE363553T1
ATE363553T1 AT03740458T AT03740458T ATE363553T1 AT E363553 T1 ATE363553 T1 AT E363553T1 AT 03740458 T AT03740458 T AT 03740458T AT 03740458 T AT03740458 T AT 03740458T AT E363553 T1 ATE363553 T1 AT E363553T1
Authority
AT
Austria
Prior art keywords
finger
projections
internal volume
diaphragma
chlorine
Prior art date
Application number
AT03740458T
Other languages
German (de)
Inventor
Salvatore Peragine
Luciano Iacopetti
Original Assignee
Industrie De Nora Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Industrie De Nora Spa filed Critical Industrie De Nora Spa
Application granted granted Critical
Publication of ATE363553T1 publication Critical patent/ATE363553T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Hybrid Cells (AREA)

Abstract

A structure of cathodic fingers for a chlor-alkali diaphragm cell with improved voltage and faradic efficiency is described, characterized in that a sheet provided with projections is inserted inside each finger. The interwoven wire mesh or the perforated sheet, forming each finger, is secured by a conductive connection, preferably by welding, to the top of each projection, thereby providing optimal uniformity of the electrical current distribution. The projections have a shape preferably equivalent to spherical caps, disposed in a quincuncial pattern. The internal volume of each finger is subdivided by the sheet provided with projections into two portions wherein both the free upward motion of hydrogen bubbles and the free longitudinal motion of the separated hydrogen take place towards the cell perimetrical chamber. Within the internal volume of each finger, which is only partially occupied by the projections, the natural recirculation of the solution constituted by the product caustic soda and the depleted sodium chloride also occurs, supported by the hydrogen bubbles.
AT03740458T 2002-07-12 2003-07-11 FINGER-SHAPED CATHODE STRUCTURE FOR CHLORINE-ALKALINE DIAPHRAGMA ELECTROLYSIS CELLS ATE363553T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2002MI001538A ITMI20021538A1 (en) 2002-07-12 2002-07-12 STRUCTURE FOR CATHODIC FINGERS OF CHLORINE-SODA DIAPHRAGM CELLS

Publications (1)

Publication Number Publication Date
ATE363553T1 true ATE363553T1 (en) 2007-06-15

Family

ID=30012509

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03740458T ATE363553T1 (en) 2002-07-12 2003-07-11 FINGER-SHAPED CATHODE STRUCTURE FOR CHLORINE-ALKALINE DIAPHRAGMA ELECTROLYSIS CELLS

Country Status (16)

Country Link
US (1) US8070923B2 (en)
EP (1) EP1521866B1 (en)
JP (1) JP2005533176A (en)
CN (1) CN1668781B (en)
AT (1) ATE363553T1 (en)
AU (1) AU2003281065A1 (en)
BR (1) BR0312616A (en)
DE (1) DE60314144D1 (en)
IT (1) ITMI20021538A1 (en)
MX (1) MXPA05000546A (en)
NO (1) NO20050675L (en)
PL (1) PL206711B1 (en)
RU (1) RU2317352C2 (en)
SA (1) SA03240218B1 (en)
WO (1) WO2004007803A1 (en)
ZA (1) ZA200500725B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20050839A1 (en) * 2005-05-11 2006-11-12 De Nora Elettrodi Spa DATO CATODICO PER CELLA A DIAFRAMMA
ITMI20071288A1 (en) * 2007-06-28 2008-12-29 Industrie De Nora Spa CATODO FOR CELL OF ELECTROLYSIS
DE102010021833A1 (en) * 2010-05-28 2011-12-01 Uhde Gmbh Electrode for electrolysis cell
RU2750887C1 (en) * 2020-09-18 2021-07-05 Общество с ограниченной ответственностью "Интеллект" Method for producing hydrogen
RU202317U1 (en) * 2020-09-18 2021-02-11 Общество с ограниченной ответственностью "Интеллект" Electrolytic cell
CN116876000B (en) * 2023-09-01 2023-11-10 高密建滔化工有限公司 Chlor-alkali preparation equipment and preparation method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910827A (en) * 1971-07-07 1975-10-07 Ppg Industries Inc Diaphragm cell
IT993833B (en) * 1972-10-31 1975-09-30 Solvay CATHODE COMPLEX FOR A DIAPHRAGM ELECTROLYTIC CELL
US4628596A (en) * 1976-12-29 1986-12-16 Currey John E Electrolytic cell with reduced inter-electrode gap
US4670123A (en) * 1985-12-16 1987-06-02 The Dow Chemical Company Structural frame for an electrochemical cell
EP0991794B1 (en) * 1997-06-03 2002-01-23 UHDENORA TECHNOLOGIES S.r.l Ion exchange membrane bipolar electrolyzer
IT1293840B1 (en) * 1997-08-08 1999-03-10 De Nora Spa IMPROVED DIAPHRAGM CHLOR-SODA ELECTROLYSIS
US6328860B1 (en) * 1998-07-30 2001-12-11 Eltech Systems Corporation Diaphragm cell cathode busbar structure

Also Published As

Publication number Publication date
DE60314144D1 (en) 2007-07-12
PL372634A1 (en) 2005-07-25
ZA200500725B (en) 2006-07-26
JP2005533176A (en) 2005-11-04
CN1668781B (en) 2010-04-21
ITMI20021538A1 (en) 2004-01-12
NO20050675L (en) 2005-02-09
AU2003281065A1 (en) 2004-02-02
EP1521866A1 (en) 2005-04-13
RU2317352C2 (en) 2008-02-20
WO2004007803A1 (en) 2004-01-22
SA03240218B1 (en) 2008-12-20
MXPA05000546A (en) 2005-04-28
PL206711B1 (en) 2010-09-30
RU2005103636A (en) 2005-07-10
CN1668781A (en) 2005-09-14
US8070923B2 (en) 2011-12-06
BR0312616A (en) 2005-04-19
EP1521866B1 (en) 2007-05-30
US20050236269A1 (en) 2005-10-27

Similar Documents

Publication Publication Date Title
JP5860075B2 (en) Electrolytic cell
RU2004117772A (en) ELECTROLYSIS CELL WITH A GAS-DIFFUSION ELECTRODE
RU2010104466A (en) ELASTIC CURRENT COLLECTOR FOR ELECTROCHEMICAL CELLS
CN114990603B (en) Ion exchange membrane electrolyzer
CN114555866B (en) Elastic pads for alkaline water electrolyzers
ATE363553T1 (en) FINGER-SHAPED CATHODE STRUCTURE FOR CHLORINE-ALKALINE DIAPHRAGMA ELECTROLYSIS CELLS
EP1509639B1 (en) Distributing element for electrolyte percolation electrochemical cell
JP2004027267A (en) Salt electrolytic cell provided with gas diffusion cathode
US8349152B2 (en) Cathodic finger for diaphragm cell
CN1974858B (en) Three-dimensional electrode for electrolysis, ion exchange membrane electrolytic cell and method of electrolysis using three-dimensional electrode
US7560010B2 (en) Diaphragm electrolytic cell
FI76837C (en) ELEKTROLYSCELL MED HORISONTALT ANORDNADE ELEKTRODER.
RU2010102764A (en) Cathode for electrolyzer
CN217104089U (en) Cathode reconstruction structure of N-BITAC electrolytic cell
SU1036808A1 (en) Electrolytic diaphragm cell
KR930019867A (en) Bipolar Electrolyzer
JPH04157189A (en) Electrolytic cell
JPS60211089A (en) Electrolytic cell provided with finger shaped electrode and cation exchange membrane

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties